Improvement in picker-staves por looms



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v'RICHARD CLLINS, 0F CHICOPEE, MASSACHUSETTS.

Letters .Patent No. 69,319, dated October l, 1867; antcdatett September 14, 1867.

IMPROVEMENT IN PICKER-STAVES EUR LOOMS.

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'lO ALLA WHOM IT MAY CONCERN:

Be it known that I, RICHARD COLLINS, of Chicopee, county of Hampden, and State of Massachusetts, -have invented certain new and useful Improvements in Loom Attachment; and I do hereby declare that the same is described and represented in the following specification and drawings, so as to enable others skilled in'the art to make and use-the same. l

I will proceed to describe its construction, referring to the drawings, in which the same letters indicate like parts in each of the figures.

'.Ihe nature of this improvement will be understood from thevspecication and drawings.

The object of this improvement is so to aetuate Ithe picker-stick of a loom as to cause it to move in a Istraight line with the shuttle-course, or in a straight diver-ging line, either slightly (more or less) above or below a true line of the shuttle-course, or to impart a tendency to elevate or depress the front end of the shuttle, as may be desirable.

The ordinary way of throwing the shuttle is by pickers arranged upon guide-rods in the shuttle-box, and actuated by means of a whip-lever arranged centrally'in the mechanism of a loom, having a cord attached to its upper end, and extending each way, one end of which is secured to the picker on the-right-hand side of the loom, and the other to the picker on the left-hand side thereof, and by the quick motion of which the shuttle is thrown from one side to the other through the race-course. This improvement is effected by a lever, having a lixed or stationary fulcrum-pin upon which it vibrates, and so constructed that its upper end, by which the shuttle-is actuated, will move in a line straight or diverging with the racc-course. I i

In the accompanying drawings is shown an elevation plan of my improvement.

a is a driver or actuating lever; c is an adjustable cam; cl i's a socket dial-plate, made on or secured to the swing-bars 'of the loom, and entends outward so as to bring the centre or fulcrum of motion, q,'nearly or quite under the centre of `the shuttle-box. Upon the outer end of this arm is arranged the dial-plate d. Upon the face of this dial-plate is placed a slitte-d cam, c, which is held by the pin or screw z'. This cam piece has at the bottom an indicator, t", in order to change the position of the cam slot i. There is formed in that part of the cam piece just above its sustaining screw, a slot, through which is inserted thescrew z', and this screw holds thc cam firm in its required fixed position. The lever a has a slit formed near-its lower end, parallel with the lever, and is secured so as to work'up and down upon the fulcrum-pin q. niis a plate or ferrule secured upon the lever, having a stnd-pin, o, and a friction-roll, o', which plays in the slit 2', which' are made of the-proper shape, so that when the upper end of the lever a is thrown from right to left, (l to 2,) the cam c will graduate its motion, so that it (the upper end of thc lever) will move in a straight or'lrorizontal line, and when desirable, by simply loosening the screw im and moving the indicator -o'ne or more degrees, the upper end of the lever will move from a given point in the line x in a diverging line either above or below said line, as desirable. s is a spring, for reacting or to throw back the lever a to its resting-place. This lever may be actuated to throw the shuttle by a whip-lever (so called in the Jacquard loom) connected to the driver-lever a by means of a pickingcord or other equivalent way.

By this improvement I am enabled to exert a controlling inliuence over the shuttle, which cannot be effected by the common pickers. i v

, I believe I have thus shown the nature, construction, and. effect' to he produced by this improvement so as to enablaothers skilled to make and use the lsame therefrom.

I claim the combination of the cam c with the lever a and plate d., substantially as and for the purpose described. Y

RICHARD COLLINS. [1.. s]

Witnesses:

A. FIELD, JEREMY W. Buss. 

